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Baiyang Chen, Peihu Gao, Bo Zhang, Daming Zhao, Wei Wang, Can Jin, Zhong Yang, Yongchun Guo, Minxian Liang, Jianping Li, Yongqing Lu, Lu Jia and Dan Zhao
Plasma transfer arc cladding technology has been widely utilized in surface engineering, repairing and remanufacturing. In the present work, multiple cladded thick claddings were prepared on compacted graphite cast iron (CGI) substrates with iron-based p...
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Shuo Zhu, Xianzhi Song, Zhaopeng Zhu, Xuezhe Yao and Muchen Liu
Stuck pipe phenomena can have disastrous effects on drilling performance, with outcomes that can range from time delays to loss of expensive machinery. In this work, we provide three methods for the prediction of stuck pipe. The first method targets the ...
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Yaguang Heng, Kunjian He, Qifeng Jiang, Weibin Zhang, Gérard Bois and Xiaobing Liu
Disc pumps rely on the shear force generated by a co-rotating disc to transport the fluid, the interaction between the fluid and impeller is weak, providing such pumps advantages when handling multi-phase flow. In the present study, a loss analysis is pr...
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Yuting Chen, Zhun Cheng and Yu Qian
In order to improve the working quality of wet clutch switching in an agricultural tractor, in this paper, we took a power shift system composed of multiple wet clutches as the research object for full-factorial performance measurement, multi-factor anal...
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Martin Dobrovolný, Vladimír Habán, Jana Tancjurová and Jan Zbavitel
The limited functionality of seals that are used in hydraulic machines to prevent the liquid from leaking into the bearings may result in decrease in machine efficiency and reliability and may cause an accident of the whole hydraulic machine. However, no...
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Yeon-Moon Choo, Jong-Gu Kim and Sang-Ho Park
The shear velocity and friction coefficient for representing the resistance of flow are key factors to determine the flow characteristics of the open-channel flow. Various studies have been conducted in the open-channel flow, but many controversies remai...
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Zuli Mao and Li Yang
We report the synthesis of SiC/Si3N4 coatings on carbon/carbon composites via pack cementation and heat treatment with nitrogen gas, the latter of which improves the coating wear resistance. X-ray diffraction (XRD), scanning electron microscopy (SEM), en...
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Wen Zhao, Peng-jiao Jia, Lin Zhu, Cheng Cheng, Jianyong Han, Yang Chen and Zhi-guo Wang
Double-O-tube shield tunneling has attracted increasing attention because it offers cost-efficiency in underground construction. Prediction of ground surface settlement and the variety of additional stresses induced by shield construction is crucial to u...
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Vicente Cortes, Carlos A. Rodriguez Betancourth, Javier A. Ortega and Hasina Huq
One of the main causes of hip prostheses failure is the premature wear of their components. Multi-directional motion or ?cross-shear? motion has been identified as one of the most significant factors affecting the wear rate of UHMWPE in total hip joint r...
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Michael Flouros, Peter Gloeckner, Markus Hirschmann, Matthias Martin, Francois Cottier and Dimitra Papailia
Rolling element bearings for aero engine applications have to withstand very challenging operating conditions because of the high thermal impact due to elevated rotational speeds and loads. The high rate of heat generation in the bearing has to be sustai...
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